For a unique, little-known three month period in 1505 Leonardo da Vinci and Michelangelo were in the Palazzo Vecchio in Florence. They each had a comission to paint a mural depicting the military glories of Florence. This play dramatizes that great moment in history. What transpired in that room? How did Leonardo, sophisticated and well travelled, handle the local bearded recluse? How did Michelangelo react to the older, more experienced artist working in his city? Salai, Leonardo's adopted son, was named the Devil for good reason.